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Message-Id: <1449016999-9796-5-git-send-email-kys@microsoft.com>
Date: Tue, 1 Dec 2015 16:43:07 -0800
From: "K. Y. Srinivasan" <kys@...rosoft.com>
To: davem@...emloft.net, netdev@...r.kernel.org,
linux-kernel@...r.kernel.org, devel@...uxdriverproject.org,
olaf@...fle.de, apw@...onical.com, jasowang@...hat.com
Cc: "K. Y. Srinivasan" <kys@...rosoft.com>
Subject: [PATCH net-next V3 05/17] hv_netvsc: Eliminatte the data field from struct hv_netvsc_packet
Eliminatte the data field from struct hv_netvsc_packet.
Signed-off-by: K. Y. Srinivasan <kys@...rosoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@...rosoft.com>
---
drivers/net/hyperv/hyperv_net.h | 5 ++---
drivers/net/hyperv/netvsc.c | 5 +++--
drivers/net/hyperv/netvsc_drv.c | 3 ++-
drivers/net/hyperv/rndis_filter.c | 11 +++++++----
4 files changed, 14 insertions(+), 10 deletions(-)
diff --git a/drivers/net/hyperv/hyperv_net.h b/drivers/net/hyperv/hyperv_net.h
index 7fa4f43..506d552 100644
--- a/drivers/net/hyperv/hyperv_net.h
+++ b/drivers/net/hyperv/hyperv_net.h
@@ -148,9 +148,6 @@ struct hv_netvsc_packet {
u64 send_completion_tid;
void *send_completion_ctx;
void (*send_completion)(void *context);
-
- /* Points to the send/receive buffer where the ethernet frame is */
- void *data;
struct hv_page_buffer *page_buf;
};
@@ -196,6 +193,7 @@ void netvsc_linkstatus_callback(struct hv_device *device_obj,
void netvsc_xmit_completion(void *context);
int netvsc_recv_callback(struct hv_device *device_obj,
struct hv_netvsc_packet *packet,
+ void **data,
struct ndis_tcp_ip_checksum_info *csum_info,
struct vmbus_channel *channel);
void netvsc_channel_cb(void *context);
@@ -206,6 +204,7 @@ int rndis_filter_device_add(struct hv_device *dev,
void rndis_filter_device_remove(struct hv_device *dev);
int rndis_filter_receive(struct hv_device *dev,
struct hv_netvsc_packet *pkt,
+ void **data,
struct vmbus_channel *channel);
int rndis_filter_set_packet_filter(struct rndis_device *dev, u32 new_filter);
diff --git a/drivers/net/hyperv/netvsc.c b/drivers/net/hyperv/netvsc.c
index 2de9e7f..8fbf816 100644
--- a/drivers/net/hyperv/netvsc.c
+++ b/drivers/net/hyperv/netvsc.c
@@ -1008,6 +1008,7 @@ static void netvsc_receive(struct netvsc_device *net_device,
int i;
int count = 0;
struct net_device *ndev;
+ void *data;
ndev = net_device->ndev;
@@ -1047,13 +1048,13 @@ static void netvsc_receive(struct netvsc_device *net_device,
for (i = 0; i < count; i++) {
/* Initialize the netvsc packet */
netvsc_packet->status = NVSP_STAT_SUCCESS;
- netvsc_packet->data = (void *)((unsigned long)net_device->
+ data = (void *)((unsigned long)net_device->
recv_buf + vmxferpage_packet->ranges[i].byte_offset);
netvsc_packet->total_data_buflen =
vmxferpage_packet->ranges[i].byte_count;
/* Pass it to the upper layer */
- rndis_filter_receive(device, netvsc_packet, channel);
+ rndis_filter_receive(device, netvsc_packet, &data, channel);
if (netvsc_packet->status != NVSP_STAT_SUCCESS)
status = NVSP_STAT_FAIL;
diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c
index 77c0849..c73afb1 100644
--- a/drivers/net/hyperv/netvsc_drv.c
+++ b/drivers/net/hyperv/netvsc_drv.c
@@ -685,6 +685,7 @@ void netvsc_linkstatus_callback(struct hv_device *device_obj,
*/
int netvsc_recv_callback(struct hv_device *device_obj,
struct hv_netvsc_packet *packet,
+ void **data,
struct ndis_tcp_ip_checksum_info *csum_info,
struct vmbus_channel *channel)
{
@@ -713,7 +714,7 @@ int netvsc_recv_callback(struct hv_device *device_obj,
* Copy to skb. This copy is needed here since the memory pointed by
* hv_netvsc_packet cannot be deallocated
*/
- memcpy(skb_put(skb, packet->total_data_buflen), packet->data,
+ memcpy(skb_put(skb, packet->total_data_buflen), *data,
packet->total_data_buflen);
skb->protocol = eth_type_trans(skb, net);
diff --git a/drivers/net/hyperv/rndis_filter.c b/drivers/net/hyperv/rndis_filter.c
index 63584e7..be0fa9c 100644
--- a/drivers/net/hyperv/rndis_filter.c
+++ b/drivers/net/hyperv/rndis_filter.c
@@ -351,6 +351,7 @@ static inline void *rndis_get_ppi(struct rndis_packet *rpkt, u32 type)
static void rndis_filter_receive_data(struct rndis_device *dev,
struct rndis_message *msg,
struct hv_netvsc_packet *pkt,
+ void **data,
struct vmbus_channel *channel)
{
struct rndis_packet *rndis_pkt;
@@ -383,7 +384,7 @@ static void rndis_filter_receive_data(struct rndis_device *dev,
* the data packet to the stack, without the rndis trailer padding
*/
pkt->total_data_buflen = rndis_pkt->data_len;
- pkt->data = (void *)((unsigned long)pkt->data + data_offset);
+ *data = (void *)((unsigned long)(*data) + data_offset);
vlan = rndis_get_ppi(rndis_pkt, IEEE_8021Q_INFO);
if (vlan) {
@@ -394,11 +395,12 @@ static void rndis_filter_receive_data(struct rndis_device *dev,
}
csum_info = rndis_get_ppi(rndis_pkt, TCPIP_CHKSUM_PKTINFO);
- netvsc_recv_callback(dev->net_dev->dev, pkt, csum_info, channel);
+ netvsc_recv_callback(dev->net_dev->dev, pkt, data, csum_info, channel);
}
int rndis_filter_receive(struct hv_device *dev,
struct hv_netvsc_packet *pkt,
+ void **data,
struct vmbus_channel *channel)
{
struct netvsc_device *net_dev = hv_get_drvdata(dev);
@@ -430,7 +432,7 @@ int rndis_filter_receive(struct hv_device *dev,
goto exit;
}
- rndis_msg = pkt->data;
+ rndis_msg = *data;
if (netif_msg_rx_err(net_dev->nd_ctx))
dump_rndis_message(dev, rndis_msg);
@@ -438,7 +440,8 @@ int rndis_filter_receive(struct hv_device *dev,
switch (rndis_msg->ndis_msg_type) {
case RNDIS_MSG_PACKET:
/* data msg */
- rndis_filter_receive_data(rndis_dev, rndis_msg, pkt, channel);
+ rndis_filter_receive_data(rndis_dev, rndis_msg, pkt,
+ data, channel);
break;
case RNDIS_MSG_INIT_C:
--
1.7.4.1
--
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